MCB3023 Test 2 Questions With Complete Solutions
________ organisms have a particularly difficult time
maintaining a proton motive force to synthesize ATP using
ATPase. Some of these organisms have a sodium motive force
instead of a proton motive force. Correct Answers alkaliphilic
*How do antiporters functions? Correct Answers they transport
a molecule across the membrane while stimultaneously
transporting another molecule in the opposite direction
*How do cells accumulate solutes against concentration
gradient? Correct Answers Active transport
*How do symporters function? Correct Answers they funtcion
as co transporters
*How do uniporters function? Correct Answers they transport
in one direction across the membrane
*How is growth defined? Correct Answers It is defined as an
increase in the number of cells
*Proteins, and nucleic acids are mostly made up of what
element? Correct Answers Nitrogen
*What are antimicrobial agents ? Correct Answers chemicals
that kill or inhibit growth.
, *What are flavoproteins? Correct Answers they contain flavin
prosthetic group that accepts two electrons and two protons but
donates only electrons
*What are some products we get from fermentation? Correct
Answers Bread, wine, beer
*What are the three classes transport? Correct Answers -Simple
transport
-Group translocation
-ABC system
*What describes a prosthentic groupd? Correct Answers -tightly
bound
-usually bind covanlently and permanently
*What describes coenzymes? Correct Answers -loosely bound
-Most are derivatives of vitamins
*What do autotrophs do? Correct Answers They obtain carbon
from CO2
*What do chemolithotrophs do? Correct Answers they oxidize
organic coupound
*What do chemoorganotrophs do? Correct Answers they
conserve energy from organic chemicals
*What do heterotrophs do? Correct Answers They recieve
engergy via consumption
________ organisms have a particularly difficult time
maintaining a proton motive force to synthesize ATP using
ATPase. Some of these organisms have a sodium motive force
instead of a proton motive force. Correct Answers alkaliphilic
*How do antiporters functions? Correct Answers they transport
a molecule across the membrane while stimultaneously
transporting another molecule in the opposite direction
*How do cells accumulate solutes against concentration
gradient? Correct Answers Active transport
*How do symporters function? Correct Answers they funtcion
as co transporters
*How do uniporters function? Correct Answers they transport
in one direction across the membrane
*How is growth defined? Correct Answers It is defined as an
increase in the number of cells
*Proteins, and nucleic acids are mostly made up of what
element? Correct Answers Nitrogen
*What are antimicrobial agents ? Correct Answers chemicals
that kill or inhibit growth.
, *What are flavoproteins? Correct Answers they contain flavin
prosthetic group that accepts two electrons and two protons but
donates only electrons
*What are some products we get from fermentation? Correct
Answers Bread, wine, beer
*What are the three classes transport? Correct Answers -Simple
transport
-Group translocation
-ABC system
*What describes a prosthentic groupd? Correct Answers -tightly
bound
-usually bind covanlently and permanently
*What describes coenzymes? Correct Answers -loosely bound
-Most are derivatives of vitamins
*What do autotrophs do? Correct Answers They obtain carbon
from CO2
*What do chemolithotrophs do? Correct Answers they oxidize
organic coupound
*What do chemoorganotrophs do? Correct Answers they
conserve energy from organic chemicals
*What do heterotrophs do? Correct Answers They recieve
engergy via consumption
